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Initial Inspection and Diagnostic Overview|Page 7333 > < Initial Inspection and Diagnostic Overview
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Electronic Throttle Actuator: Component Tests and General Diagnostics

Throttle Position Sensor/Accelerator Pedal Position Sensor 2, Checking

Special tools, testers and auxiliary items required

‹› Multimeter.

‹› Wiring diagram

Test requirement

‹› The Engine Control Module (ECM) (J623) fuses OK.

‹› Battery voltage at least 12.5 V.

‹› All electrical consumers such as, lights and rear window defroster, switched off.

‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".

‹› A/C switched off.

‹› Ground (GND) connections between engine/transmission/chassis OK.

‹› Note: both the Throttle Position (TP) sensor and - G79 and the Accelerator Pedal Position Sensor 2- G185 are located in one housing at the

accelerator pedal.

‹› Use only gold-plated terminals when servicing the electrical harness connector terminals in Throttle Position (TP) Sensor (G79)/Accelerator Pedal

Position Sensor 2 (G185).

Test procedure

-

Perform a preliminary check to verify the customer's complaint. Refer to => [ Preliminary Check ] See: Testing and Inspection/Scan Tool Testing
and Procedures/Preliminary Check.

Start diagnosis

-

Remove the left knee bolster. 

Initial Inspection and Diagnostic Overview|Page 7333 > < Initial Inspection and Diagnostic Overview